Idaho saw 10 tornadoes between May and September, a high number for the state that would not be surpassed until 1993.

Confirmed tornado total for the entire year 1986 in the United States.

An outbreak of tornadoes occurred, extending from Texas to Tennessee.

The most notable tornadoes of this outbreak all came from one supercell in the Houston area, which produced 4 tornadoes, the strongest being an F3 which caused 2 deaths and devastated a mobile home park and David Wayne Hooks Airport southeast of Tomball.

The tornado then travelled through mainly rural areas of Polk and McMinn Counties, before dissipating 10 miles south of Athens.

An early-morning F3 tornado struck Sweetwater, Texas, resulting in one death and 100 injuries.

The first was a strong F3 which caused significant damage in Edmond, Oklahoma and injured 15 people.

Fridley, Minnesota was struck by a photogenic, multi-vortex F2 tornado which captured by KARE 11.